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<p>Understanding the habitat composition and diversity of species is highly critical, not only for comprehending the structure of a forest community, but also for the establishment and execution of conservation strategies. Effective conservation management requires a focus on protecting species on the verge of extinction by considering their habitat and distributional extent. In this study, we evaluated habitat heterogeneity by examining species associations, diversity, habitat environmental factors, and the distribution of suitable habitats of <i>Canarium strictum</i> in a biodiversity hotspot region of Tripura, northeastern India. A total of 43 adults, 54 juveniles, and 55 seedling individuals of <i>C. strictum</i> were recorded from 15 populations with altitudes varying from 41 to 164&#xa0;m asl. Multivariate analysis of habitat environmental factors revealed that out of 22 evaluated models, four competitive models, emphasizing the influence of stand density, disturbance score, and soil pH collectively represented approximately 49% of the model weight. The remaining models, including combinations of disturbance score, soil pH, and soil bulk density demonstrated varying degrees of influence on <i>C. strictum</i> abundance. The spatial distribution models developed using bioclimatic variables for the current climate reflect high accuracy with a mean AUC of 0.981. The model performance test indicated satisfactory results, confirming the robustness of the MaxEnt model. Moreover, identifying habitat heterogeneity, species associations, and environmental factors is crucial for understanding the ecology of target species and guiding conservation strategies. Overall, our findings offer valuable insights for the conservation of <i>C. strictum</i> in this biodiversity hotspot region.</p>

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Habitat characteristics and modeling current and future potential distributions of Canarium strictum using MaxEnt: a threatened socioeconomically significant plant of Northeast India

  • 期刊论文

  • 发表日期：

    2025年2月13日

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  • Biplab Banik,
  • Stabak Roy,
  • Suman Paul,
  • Muktadhar Reang,
  • Koushik Majumdar,
  • Biswajit Baishnab,
  • Saptarshi Mitra,
  • Badal Kumar Datta

摘要

Understanding the habitat composition and diversity of species is highly critical, not only for comprehending the structure of a forest community, but also for the establishment and execution of conservation strategies. Effective conservation management requires a focus on protecting species on the verge of extinction by considering their habitat and distributional extent. In this study, we evaluated habitat heterogeneity by examining species associations, diversity, habitat environmental factors, and the distribution of suitable habitats of Canarium strictum in a biodiversity hotspot region of Tripura, northeastern India. A total of 43 adults, 54 juveniles, and 55 seedling individuals of C. strictum were recorded from 15 populations with altitudes varying from 41 to 164 m asl. Multivariate analysis of habitat environmental factors revealed that out of 22 evaluated models, four competitive models, emphasizing the influence of stand density, disturbance score, and soil pH collectively represented approximately 49% of the model weight. The remaining models, including combinations of disturbance score, soil pH, and soil bulk density demonstrated varying degrees of influence on C. strictum abundance. The spatial distribution models developed using bioclimatic variables for the current climate reflect high accuracy with a mean AUC of 0.981. The model performance test indicated satisfactory results, confirming the robustness of the MaxEnt model. Moreover, identifying habitat heterogeneity, species associations, and environmental factors is crucial for understanding the ecology of target species and guiding conservation strategies. Overall, our findings offer valuable insights for the conservation of C. strictum in this biodiversity hotspot region.